identification-numbers/lib/identification-numbers/util.js

Provides utility methods to validate and generate various identification numbers such as NIP, REGON, PESEL, etc.

exports.randomInt = function (min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
};

exports.isString = function (value) {
    return typeof value === 'string'
};